CN216279574U - Novel elastic one-way valve structure and air sac infusion pump system - Google Patents
Novel elastic one-way valve structure and air sac infusion pump system Download PDFInfo
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- CN216279574U CN216279574U CN202122177832.9U CN202122177832U CN216279574U CN 216279574 U CN216279574 U CN 216279574U CN 202122177832 U CN202122177832 U CN 202122177832U CN 216279574 U CN216279574 U CN 216279574U
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Abstract
The utility model discloses a novel elastic one-way valve structure, which comprises: a valve body; the upper valve cover is covered on the upper end surface of the valve body; the lower valve cover is covered on the lower end surface of the valve body; the valve seat is arranged in the valve cavity of the valve body and is positioned on the upper end face of the lower valve cover; the valve ball is arranged in the valve cavity of the valve body and is positioned between the upper valve cover and the valve seat; and a nonmetal elastic part is arranged between the upper valve cover and the valve ball in the valve cavity of the valve body, so that the valve ball can be timely and accurately reset. Also discloses a balloon infusion pump system comprising the novel elastic one-way valve structure. The utility model ensures that the valve ball can be accurately reset in time and is suitable for conveying different media.
Description
Technical Field
The utility model relates to the technical field of fluid conveying, in particular to a novel elastic one-way valve structure and an air sac infusion pump system comprising the same.
Background
The air sac infusion pump is mainly used for fluid conveying systems in industries such as semiconductors, photovoltaic solar cells, light emitting diodes, liquid crystal displays and electronics, and has the advantages of high cleanliness, corrosion resistance, stable and reliable work and the like. The air sac infusion pump mainly realizes liquid suction and liquid discharge by means of volume change of a sac cavity of the air sac. When the air sac extends, the volume of the sac cavity is increased, the pressure in the sac cavity is reduced, the liquid inlet valve is opened, the liquid outlet valve is closed, and liquid is sucked; when the air sac is shortened, the volume of the sac cavity is reduced, the pressure in the sac cavity is increased, the liquid inlet valve is closed, the liquid discharge valve is opened, and liquid is discharged. The traditional one-way valve is used for the liquid inlet valve and the liquid outlet valve in the existing air sac infusion pump.
The check valve is also called as a check valve or a check valve, the conveyed medium can only flow from a fixed direction and cannot flow back, and the check valve is mainly used for preventing the medium from flowing reversely in a conveying system. Referring to fig. 1, a conventional check valve is shown in the figure, and includes a valve body 10, an upper valve cover 20, a lower valve cover 30, a valve seat 40 and a valve ball 50, wherein the upper valve cover 20 and the lower valve cover 30 are respectively covered on the upper end surface and the lower end surface of the valve body 10, the valve seat 40 is installed in the valve body 10 and located on the upper end surface of the lower valve cover 30, the valve ball 50 is arranged in the valve body 10 and located between the upper valve cover 10 and the valve seat 40, and the closing operation of the valve body is realized by using the self weight of the valve ball 50 as the restoring force of the check valve. When complex media are conveyed, due to the difference of the density, the concentration and the like of the media, the valve ball 50 of the one-way valve cannot be timely and accurately reset, so that the valve ball 50 and the valve seat 40 cannot be normally and tightly closed, the one-way valve fails, and the one-way valve cannot stably and normally work. Therefore, the existing one-way valve has certain limitation on the types of the conveyable media, and the existing air sac infusion pump also has certain limitation on the types of the conveyable media.
To this end, the applicant has sought, through useful research and research, a solution to the above-mentioned problems, in the context of which the technical solutions to be described below have been made.
SUMMERY OF THE UTILITY MODEL
One of the technical problems to be solved by the present invention is: aiming at the defects of the prior art, the novel elastic one-way valve structure which has high closing stability and is suitable for conveying different media is provided.
The second technical problem to be solved by the present invention is: provides a balloon infusion pump system comprising the novel elastic one-way valve structure.
A novel elastic check valve structure as a first aspect of the present invention includes:
the upper end surface and the lower end surface of the valve body are of an open structure, and a valve cavity is formed in the valve body;
the upper valve cover is covered on the upper end surface of the valve body, and at least one upper valve cover through hole communicated with the valve cavity is formed in the upper valve cover;
the lower valve cover is covered on the lower end face of the valve body, and at least one lower valve cover through hole communicated with the valve cavity is formed in the lower valve cover;
the valve seat is arranged in the valve cavity of the valve body and positioned on the upper end face of the lower valve cover, and the valve seat is provided with a valve seat through hole communicated with the lower valve cover through hole; and
the valve ball is arranged in the valve cavity of the valve body and is positioned between the upper valve cover and the valve seat; it is characterized in that the preparation method is characterized in that,
and a nonmetal elastic part is arranged between the upper valve cover and the valve ball in the valve cavity of the valve body, the upper end of the nonmetal elastic part is abutted against the lower end surface of the upper valve cover, and the lower end of the nonmetal elastic part is abutted against the outer spherical surface of the valve ball, so that the valve ball can be timely and accurately reset.
In a preferred embodiment of the present invention, the non-metal elastic member is a cylindrical spring type structure, and a first axial flow passage communicating with the through hole of the upper valve cover is formed in the non-metal elastic member, a slight clearance is formed between an outer cylindrical surface of the non-metal elastic member and an inner circumferential surface of the valve chamber, a first elastic fitting end surface cooperating with the valve ball is formed at a lower end of the non-metal elastic member, and at least one first flow passage through hole communicating with the first axial flow passage is formed on the first elastic fitting end surface.
In a preferred embodiment of the present invention, the non-metal elastic member is of a bellows structure, a second axial flow passage communicating with the through hole of the upper valve cover is formed in the non-metal elastic member, a slight gap is formed between the outer circumferential surface of the non-metal elastic member and the inner circumferential surface of the valve chamber, a second elastic fitting end surface fitting with the valve ball is formed at the lower end of the non-metal elastic member, and at least one second flow passage through hole communicating with the second axial flow passage is formed on the second elastic fitting end surface.
In a preferred embodiment of the present invention, the non-metal elastic member is of a bellows structure, the upper end of the non-metal elastic member is nested on the lower end surface of the upper valve cover, the lower end of the non-metal elastic member abuts against the outer spherical surface of the valve ball, the outer tubular surface of the non-metal elastic member is in clearance fit with the inner circumferential surface of the valve cavity, and the plurality of upper valve cover through holes of the upper valve cover are arranged at intervals along the circumferential direction of the non-metal elastic member and are communicated with the flow passage space formed between the outer tubular surface of the non-metal elastic member and the inner circumferential surface of the valve cavity.
In a preferred embodiment of the present invention, the non-metallic elastic member is of a spring type structure, the upper end of the non-metallic elastic member is nested on the lower end surface of the upper valve cover, the lower end of the non-metallic elastic member abuts against the outer spherical surface of the valve ball, the outer circumferential surface of the non-metallic elastic member is in clearance fit with the inner circumferential surface of the valve cavity, and a plurality of upper valve cover through holes of the upper valve cover are arranged at intervals along the circumferential direction of the non-metallic elastic member and are communicated with a flow channel space formed between the outer circumferential surface of the non-metallic elastic member and the inner circumferential surface of the valve cavity.
In a preferred embodiment of the present invention, the non-metallic elastic member is made of a plastic material such as PTFE, PFA, PCTFE, or a rubber material.
In a preferred embodiment of the utility model, the novel elastic one-way valve structure is applied to a liquid inlet one-way valve and/or a liquid outlet one-way valve in a bellows infusion pump, a plunger pump, a diaphragm pump and a piston pump.
A bellows infusion pump system as a second aspect of the present invention comprises:
the air sac infusion pump is provided with at least one liquid inlet end and at least one liquid outlet end;
each liquid inlet one-way valve is arranged on the air sac liquid conveying pump, the liquid inlet end of each liquid inlet one-way valve is correspondingly connected with a liquid inlet pipe, and the liquid outlet end of each liquid inlet one-way valve is correspondingly communicated with the liquid inlet end of the air sac liquid conveying pump; and
each liquid discharge one-way valve is arranged on the air sac liquid conveying pump, the liquid inlet end of each liquid discharge one-way valve is respectively and correspondingly communicated with the liquid outlet end of the air sac liquid conveying pump, and the liquid outlet end of each liquid discharge one-way valve is respectively and correspondingly connected with a liquid outlet pipe; it is characterized in that the preparation method is characterized in that,
the liquid inlet one-way valve and/or the liquid outlet one-way valve are/is the novel elastic one-way valve, or the novel elastic one-way valve is/are arranged on the liquid inlet pipe and/or the liquid outlet pipe.
In a preferred embodiment of the present invention, the balloon infusion pump comprises:
the pump body is internally provided with a bag cavity;
the pump head is arranged on the side part of the pump body, at least one liquid inlet flow channel and at least one liquid outlet flow channel are formed in the pump head, each liquid inlet flow channel and each liquid outlet flow channel are respectively communicated with the bag cavity, and a liquid inlet check valve mounting groove for mounting the liquid inlet check valve and a liquid discharge check valve mounting groove for mounting the liquid discharge check valve are formed in the pump head;
the air sac structure is sleeved on the peripheral surface of the pump body; and
and the air sac driving unit is arranged on the pump body and is used for driving the air sac structure to act.
In a preferred embodiment of the utility model, the air bag drive unit is an electric drive unit or a pneumatic drive unit.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: the non-metal elastic part is arranged in the valve cavity of the valve body, and the non-metal elastic part enables the valve ball to accurately reset in time. The novel elastic one-way valve structure can be applied to various types of infusion pumps, such as liquid inlet one-way valves and/or liquid discharge one-way valves in infusion pumps such as air sac infusion pumps, plunger pumps, diaphragm pumps, piston pumps and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a conventional check valve.
Fig. 2 is a schematic structural diagram of embodiment 1 of the novel elastic one-way valve structure of the utility model.
Fig. 3 is a schematic structural diagram of embodiment 2 of the novel elastic one-way valve structure of the utility model.
Fig. 4 is a schematic structural diagram of embodiment 3 of the novel elastic one-way valve structure of the utility model.
Fig. 5 is a schematic structural diagram of embodiment 4 of the novel elastic one-way valve structure of the utility model.
Fig. 6 is a schematic structural view of embodiment 1 of the balloon infusion pump system of the utility model.
Fig. 7 is a schematic structural view of embodiment 2 of the balloon infusion pump system of the utility model.
Fig. 8 is a schematic structural view of embodiment 3 of the balloon infusion pump system of the utility model.
Fig. 9 is a schematic structural view of embodiment 4 of the balloon infusion pump system of the utility model.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
Example 1
Referring to fig. 2, a novel elastic one-way valve structure 100 is shown, which comprises a valve body 110, an upper valve cover 120, a lower valve cover 130, a valve seat 140, a valve ball 150 and a non-metal elastic member 160.
The upper and lower end surfaces of the valve body 110 are open-ended and a valve chamber 111 is formed therein. The upper valve cover 120 covers the upper end surface of the valve body 110, and an upper valve cover through hole 121 communicated with the valve cavity 111 is formed in the upper valve cover 120. The lower bonnet 130 covers the lower end surface of the valve body 110, and a lower bonnet through hole 131 communicated with the valve cavity 111 is formed in the lower bonnet 130. The valve seat 140 is disposed in the valve cavity 111 of the valve body 110 and located on the upper end surface of the lower bonnet 130, and the valve seat 140 is opened with a valve seat through hole 141 communicating with the lower bonnet through hole 131. The ball 150 is disposed in the valve cavity 111 of the valve body 110 between the upper bonnet 120 and the valve seat 140 for performing an opening or closing action of the check valve. The non-metal elastic member 160 is installed in the valve cavity 111 of the valve body 110 between the upper bonnet 120 and the valve ball 150, the upper end of the non-metal elastic member 160 abuts against the lower end surface of the upper bonnet 120, and the lower end of the non-metal elastic member 160 abuts against the outer spherical surface of the valve ball 150, so that the valve ball 150 is accurately reset in time.
The non-metal elastic member 160 has a cylindrical spring structure, the spring direction of the non-metal elastic member may be a right direction or a left direction, and the number of turns and the pitch of the spring are designed according to the required elastic force. The non-metal elastic member 160 is made of plastic material such as PTFE, PFA, PCTFE, etc., or rubber material, and has good elastic performance and corrosion resistance.
An axial flow passage 161 communicating with the upper valve cover through hole 121 is formed in the non-metal elastic member 160, a slight clearance is formed between the outer cylindrical surface thereof and the inner circumferential surface of the valve chamber 111, an elastic fitting end surface 162 fitting with the valve ball 150 is formed at the lower end of the non-metal elastic member 160, and at least one flow passage through hole 163 communicating with the axial flow passage 161 is provided at intervals on the elastic fitting end surface 162. The flow passage through hole 163 may be a single circular hole or a plurality of circular holes, and the flow passage through hole 163 may be a circular hole or may be designed into a flow passage through hole of other shapes as needed.
The working process of the novel elastic check valve structure 100 in this embodiment is as follows:
after passing through the lower bonnet through hole 131 of the lower bonnet 130 and the valve seat through hole 141 of the valve seat 140, the liquid medium to be delivered lifts up the valve ball 150 on the valve seat 140, then enters the valve cavity 111 of the valve body 110, then enters the axial flow passage 161 through the flow passage through hole 163 of the non-metallic elastic member 160, and is discharged through the upper bonnet through hole 121 of the upper bonnet 120. When the pressure of the liquid medium to be delivered is reduced, the valve ball 150 is pressed down to the valve seat 140 by its own weight and the elastic force of the non-metal elastic member 160, so that the delivery flow path in the valve body 110 is closed.
According to the elastic check valve, the nonmetal elastic part 160 is arranged in the valve cavity 111 of the valve body 110, the valve ball 150 is enabled to accurately reset in time through the nonmetal elastic part 160, meanwhile, the nonmetal elastic part 160 is made of nonmetal materials, such as plastic or rubber materials, and can be suitable for conveying different media, and therefore the universality of the novel elastic check valve structure is greatly improved.
The novel elastic check valve structure 100 of the present invention can be applied to various types of infusion pumps, such as a liquid inlet check valve and/or a liquid outlet check valve in an infusion pump, such as a bellows infusion pump, a plunger pump, a diaphragm pump, a piston pump, etc.
Example 2
The novel elastic check valve structure 100a in this embodiment is substantially the same as the novel elastic check valve structure 100 in embodiment 1, and the difference is that: referring to fig. 3, the non-metal elastic member 160a has a bellows structure, and the number of layers and pitch of the corrugations are designed according to the magnitude of the required elastic force. An axial flow passage 161a communicating with the upper valve cover through hole 121 is formed in the non-metal elastic member 160a, a slight clearance is formed between the outer peripheral surface thereof and the inner peripheral surface of the valve chamber 111, an elastic engagement end surface 162a engaging with the valve ball 150 is formed at the lower end of the non-metal elastic member 160a, and at least one flow passage through hole 163a communicating with the axial flow passage 161a is opened at the elastic engagement end surface 162 a.
Example 3
The novel elastic check valve structure 100b in this embodiment is substantially the same as the novel elastic check valve structure 100 in embodiment 1, and the difference is that: referring to fig. 4, the non-metal elastic member 160b has a bellows structure, and the number of layers and pitch of the corrugations are designed according to the magnitude of the required elastic force. The upper end of the non-metal elastic member 160b is nested on the lower end surface of the upper valve cover 120b, the lower end of the non-metal elastic member is abutted on the outer spherical surface of the valve ball 150, the outer surface of the non-metal elastic member 160b is in clearance fit with the inner circumferential surface of the valve cavity 111, the upper valve cover through holes 121b of the upper valve cover 120b are a plurality of and are arranged at intervals along the circumferential direction of the non-metal elastic member 160b and are communicated with a flow channel space formed between the outer surface of the non-metal elastic member 160b and the inner circumferential surface of the valve cavity 111, and a liquid medium to be conveyed passes through the flow channel space.
Example 4
The novel elastic check valve structure 100c in this embodiment is substantially the same as the novel elastic check valve structure 100b in embodiment 3, and the difference is that: referring to fig. 5, the non-metal elastic member 160c has a spring structure, the spring may be right-handed or left-handed, and the number of turns and the pitch of the spring are designed according to the required elastic force. The upper end of the non-metal elastic member 160c is nested on the lower end surface of the upper valve cover 120c, the lower end of the non-metal elastic member is abutted against the outer spherical surface of the valve ball 150, the outer circumferential surface of the non-metal elastic member 160c is in clearance fit with the inner circumferential surface of the valve cavity 111, the upper valve cover through holes 121c of the upper valve cover 120c are a plurality of and are arranged at intervals along the circumferential direction of the non-metal elastic member 160c and are communicated with a flow passage space formed between the outer circumferential surface of the non-metal elastic member 160c and the inner circumferential surface of the valve cavity 111, and a liquid medium to be conveyed passes through the flow passage space.
Example 5
Referring to fig. 6, a bellows infusion pump system 200 is shown including a bellows infusion pump 210, an inlet check valve 220, and a discharge check valve 230. The liquid inlet check valve 220 and the liquid outlet check valve 230 are not limited to the number in the present embodiment, and may be provided in plurality or in plurality according to the actual transportation requirement.
The balloon infusion pump 210 has an inlet end and an outlet end. Specifically, the bellows infusion pump 210 includes a pump body 211, a pump head 212, a bellows structure 213, and a bellows drive unit 214. The pump body 211 is provided with a bag 2111, the pump head 212 is mounted on the side of the pump body 211, the pump head 212 is provided with a liquid inlet passage 2121 and a liquid outlet passage 2122, one end of the liquid inlet passage 2121 is used as the liquid inlet end of the air bag liquid delivery pump 210, the other end of the liquid inlet passage 2121 is communicated with the bag 2111 of the pump body 211, one end of the liquid outlet passage 2122 is used as the liquid outlet end of the air bag liquid delivery pump 210, and the other end of the liquid outlet passage 2122 is communicated with the bag 2111 of the pump body 211. The pump head 212 is formed therein with a liquid inlet check valve mounting groove 2123 for mounting the liquid inlet check valve 220 and a liquid discharge check valve mounting groove 2124 for mounting the liquid discharge check valve 230. The bellows structure 213 is fitted around the outer peripheral surface of the pump body 211. The bellows drive unit 214 is mounted on the pump body 211 and is used to drive the bellows structure 213 into motion. The bladder drive unit 214 may be an electric drive unit or a pneumatic drive unit.
The liquid inlet check valve 220 is installed on the liquid inlet check valve installation groove 2123 of the air sac liquid conveying pump 210, the liquid inlet end of the liquid inlet check valve is connected with a liquid inlet pipe 240, and the liquid outlet end of the liquid inlet check valve is communicated with the liquid inlet end of the air sac liquid conveying pump 210.
The drainage check valve 230 is installed on the drainage check valve installation groove 2124 of the air sac infusion pump 210, and the liquid inlet end thereof is communicated with the liquid outlet end of the air sac infusion pump 210, and the liquid outlet end thereof is connected with a liquid outlet pipe 250.
The liquid inlet check valve 220 and the liquid outlet check valve 230 are both of the novel elastic check valve structure as described in any one of the above embodiments 1 to 4.
Example 6
The balloon infusion pump system 200a of this embodiment is substantially the same as the balloon infusion pump system 200 of embodiment 5, except that: referring to fig. 7, the liquid inlet check valve 220a is of an existing check valve structure, and the liquid outlet check valve 230a is of a novel elastic check valve structure as described in any one of embodiments 1 to 4 above.
Example 7
The balloon infusion pump system 200b of this embodiment is substantially the same as the balloon infusion pump system 200 of embodiment 5, except that: referring to fig. 8, the liquid inlet check valve 220b has a novel elastic check valve structure as described in any one of embodiments 1 to 4, and the liquid discharge check valve 230b has an existing check valve structure.
Example 8
The balloon infusion pump system 200c of this embodiment is substantially the same as the balloon infusion pump system 200 of embodiment 5, except that: referring to fig. 9, the liquid inlet check valve 220c and the liquid discharge check valve 230c both adopt the existing check valve structure, and the liquid inlet pipe 240c and the liquid discharge pipe 250c are respectively provided with the novel elastic check valve structure as described in any one of embodiments 1 to 4.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A novel elastomeric check valve structure comprising:
the upper end surface and the lower end surface of the valve body are of an open structure, and a valve cavity is formed in the valve body;
the upper valve cover is covered on the upper end surface of the valve body, and at least one upper valve cover through hole communicated with the valve cavity is formed in the upper valve cover;
the lower valve cover is covered on the lower end face of the valve body, and at least one lower valve cover through hole communicated with the valve cavity is formed in the lower valve cover;
the valve seat is arranged in the valve cavity of the valve body and positioned on the upper end face of the lower valve cover, and the valve seat is provided with a valve seat through hole communicated with the lower valve cover through hole; and
the valve ball is arranged in the valve cavity of the valve body and is positioned between the upper valve cover and the valve seat; it is characterized in that the preparation method is characterized in that,
and a nonmetal elastic part is arranged between the upper valve cover and the valve ball in the valve cavity of the valve body, the upper end of the nonmetal elastic part is abutted against the lower end surface of the upper valve cover, and the lower end of the nonmetal elastic part is abutted against the outer spherical surface of the valve ball, so that the valve ball can be timely and accurately reset.
2. The novel elastic check valve structure as claimed in claim 1, wherein the non-metal elastic member is a cylindrical spring type structure, a first axial flow passage communicated with the through hole of the upper valve cover is formed in the non-metal elastic member, a slight clearance is formed between the outer cylindrical surface of the non-metal elastic member and the inner circumferential surface of the valve chamber, a first elastic fitting end surface matched with the valve ball is formed at the lower end of the non-metal elastic member, and at least one first flow passage through hole communicated with the first axial flow passage is formed on the first elastic fitting end surface.
3. The novel elastic check valve structure as claimed in claim 1, wherein the non-metal elastic member is of a bellows structure, a second axial flow passage communicating with the through hole of the upper valve cover is formed therein, a slight clearance is formed between an outer circumferential surface of the non-metal elastic member and an inner circumferential surface of the valve chamber, a second elastic fitting end surface engaging with the valve ball is formed at a lower end of the non-metal elastic member, and at least one second flow passage through hole communicating with the second axial flow passage is formed at the second elastic fitting end surface.
4. The novel elastic check valve structure as claimed in claim 1, wherein the non-metal elastic member is of a bellows structure, the upper end of the non-metal elastic member is nested on the lower end surface of the upper valve cover, the lower end of the non-metal elastic member abuts against the outer spherical surface of the valve ball, the outer surface of the non-metal elastic member is in clearance fit with the inner circumferential surface of the valve cavity, and the upper valve cover through holes of the upper valve cover are a plurality of and are arranged at intervals along the circumferential direction of the non-metal elastic member and are communicated with the flow passage space formed between the outer surface of the non-metal elastic member and the inner circumferential surface of the valve cavity.
5. The novel elastic check valve structure as claimed in claim 1, wherein the non-metal elastic member is of a spring type structure, the upper end of the non-metal elastic member is nested on the lower end surface of the upper valve cover, the lower end of the non-metal elastic member abuts against the outer spherical surface of the valve ball, the outer circumferential surface of the non-metal elastic member is in clearance fit with the inner circumferential surface of the valve cavity, and a plurality of upper valve cover through holes of the upper valve cover are arranged at intervals along the circumferential direction of the non-metal elastic member and are communicated with a flow passage space formed between the outer circumferential surface of the non-metal elastic member and the inner circumferential surface of the valve cavity.
6. The novel elastic one-way valve structure as claimed in any one of claims 1 to 5, wherein the non-metallic elastic member is made of PTFE, PFA, PCTFE plastic material or rubber material.
7. The novel elastic check valve structure as claimed in claim 1, wherein the novel elastic check valve structure is applied to a liquid inlet check valve and/or a liquid outlet check valve in a bellows infusion pump, a plunger pump, a diaphragm pump, a piston pump.
8. A balloon infusion pump system comprising:
the air sac infusion pump is provided with at least one liquid inlet end and at least one liquid outlet end;
each liquid inlet one-way valve is arranged on the air sac liquid conveying pump, the liquid inlet end of each liquid inlet one-way valve is correspondingly connected with a liquid inlet pipe, and the liquid outlet end of each liquid inlet one-way valve is correspondingly communicated with the liquid inlet end of the air sac liquid conveying pump; and
each liquid discharge one-way valve is arranged on the air sac liquid conveying pump, the liquid inlet end of each liquid discharge one-way valve is respectively and correspondingly communicated with the liquid outlet end of the air sac liquid conveying pump, and the liquid outlet end of each liquid discharge one-way valve is respectively and correspondingly connected with a liquid outlet pipe; it is characterized in that the preparation method is characterized in that,
the liquid inlet one-way valve and/or the liquid outlet one-way valve are novel elastic one-way valves as claimed in any one of claims 1 to 7, or the novel elastic one-way valves as claimed in any one of claims 1 to 7 are mounted on the liquid inlet pipe and/or the liquid outlet pipe.
9. The balloon infusion pump system of claim 8, wherein the balloon infusion pump comprises:
the pump body is internally provided with a bag cavity;
the pump head is arranged on the side part of the pump body, at least one liquid inlet flow channel and at least one liquid outlet flow channel are formed in the pump head, each liquid inlet flow channel and each liquid outlet flow channel are respectively communicated with the bag cavity, and a liquid inlet check valve mounting groove for mounting the liquid inlet check valve and a liquid discharge check valve mounting groove for mounting the liquid discharge check valve are formed in the pump head;
the air sac structure is sleeved on the peripheral surface of the pump body; and
and the air sac driving unit is arranged on the pump body and is used for driving the air sac structure to act.
10. The balloon infusion pump system of claim 9, wherein the balloon drive unit is an electric drive unit or a pneumatic drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177832.9U CN216279574U (en) | 2021-09-09 | 2021-09-09 | Novel elastic one-way valve structure and air sac infusion pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122177832.9U CN216279574U (en) | 2021-09-09 | 2021-09-09 | Novel elastic one-way valve structure and air sac infusion pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216279574U true CN216279574U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122177832.9U Active CN216279574U (en) | 2021-09-09 | 2021-09-09 | Novel elastic one-way valve structure and air sac infusion pump system |
Country Status (1)
| Country | Link |
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| CN (1) | CN216279574U (en) |
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2021
- 2021-09-09 CN CN202122177832.9U patent/CN216279574U/en active Active
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